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Roof blower

Axial flow roof fan

 Axial flow roof fan
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Detailed description

Axial flow Roof blower There will be some high temperatures at normal temperature, but they are all within the normal range. This is because the friction between the parts of the machine causes heat to cause the fuselage temperature to be high, but not all temperatures are normal.

  

The body temperature of fan equipment exceeds the normal value. The main reasons are as follows:

  

1. installation of diffusion tank: the roof fan outlet is not directly exposed to the atmosphere in the air, usually installed at the fan outlet (such as the left) diffuser, which can avoid pressure loss, air turbulence, diffuser cone taper 15 height is equal to 1 degrees 1.5 times the width of the fan outlet.

  

2. installation of exhaust elbow: when installing the elbow at the outlet of the roof fan, the bending direction of the bent pipe should be consistent with the rotation direction of the fan page, and the circular bending separation board (such as left chart) is recommended at the bending point of the pipe, so that the working condition of the airflow can be improved, and the pressure loss of the system can be reduced.

  

3. installing a square intake chamber: when the roof fan is installed with a square intake chamber, the arc separation board is installed at the bending point of the intake chamber, and the deflector is installed at the inlet, and the air chamber is as large as possible. The intake chamber W/R<1.0 (as shown on the left) can avoid vortex formation in the air chamber, reduce the pressure loss and reduce the noise of the system.

  

4. install a circular intake chamber: when a circular pipe is installed at the inlet of the roof fan, the pipeline should be directly and smoothly connected to the fan (such as the left), thus avoiding the reduction of the flow area caused by the curved pipe, resulting in turbulent area and pressure loss, and reducing the system noise.

  

5. there are obstacles in the inlet and outlet: the roof fan inlet and outlet have obstacles (such as the left), will obstruct the air flow to the fan, resulting in air turbulence, so that the system resistance increases, the flow rate decreases, noise increases, so the inlet and outlet and the barrier to ensure at least 1.5 times the diameter of the pipe diameter.

  

Six Roof blower Pipeline import and export protection: in order to prevent external impurities from inhaling pipes, causing blockage of pipelines, the whole pipeline system can not operate normally.



Tags:   Roof blower   Exhaust fan   Axial fan
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